Finding the Third Proportional to 171,315 and 272,812.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,315 : 272,812.50 = 272,812.50 : x
2. Step 2: Convert to fraction form
   171,315/272,812.50 = 272,812.50/x
3. Step 3: Cross multiply
   171,315x = 272,812.50 × 272,812.50
4. Step 4: Simplify right side
   171,315x = 74,426,660,156.25
5. Step 5: Solve for x
   x = 74,426,660,156.25/171,315
6. Step 6: Final answer
   x = 434,443.34